Answer: 1. 63; 2. 84; 3. 104 4. 1:2
Step-by-step explanation: Since Zoey has $28, and the ratio is 4:5, we can multiply the ratio by 7 on both sides so that it is 28:35, giving $35 for andrew, and this $28+$35=$63. Since the ratio of red to white marbles has a sum of 10, but there are 120, we multiply the ratio by 120/10=12, to make the ratio applicable to the scenario, so 7 times 12 = 84 red marbles. Same way for the theater question, 195/15=13, so 8 times 13= 104, and so 104 people are boys. For the last question you can simply divide both sides by 5 (or think of it as a fraction, 5/10=1/2).
Multiply the 6 by 2x and 11 then you would add 15. You should then have on one side getting rid of the parenthesis 12x-51=3x+12. Add 51 and subtract 3x and you should get 9x=63. Then you would divide by 9 and get an answer of 7. To check you would plug 7 into the equation. 6(7•2-11)+15= 33 and 3•7 +12= 33
1. we know that product (x) so divide it by 2 and then minus some from 1 side and add on to the other side
Answer:
-4 and 0
Step-by-step explanation:
You just count 2 to the left and 2 to the right
Divide the miles and time to find the speed.
14.4/3 = 4.8
28.8/6 = 4.8
43.2/9 = 4.8
57.6/12 = 4.8
All the answers are the same, so therefore the speed is 4.8 mph.